nonpermeable en · ADJ
Etymology
From non- + permeable.
Meanings
- (not-comparable) Synonym of impermeable.
- (not-comparable) Having the same magnetic permeability as that of free space, so that the material in question has a magnetic permeability μ=μ₀ (where μ₀ = 4π×10⁻⁷ N A⁻² exactly in SI units).